单项选择题In the author’s opinion, as seen in this passage, one outcome of the influence of the Life experience adherents has been ______.
单项选择题According to the passage, which of the following statements can not be considered as the reason of the smelly house of the poor
单项选择题The main point of this speech is something about ______.
单项选择题It can be inferred from the passage that studies of endangered species ______.
单项选择题What is the main idea of the first paragraph